Physical therapy exercises for the elbow and arm help by increasing mobility, reducing stiffness, and strengthening muscles. These exercises improve joint function and promote healing by enhancing blood circulation, which reduces pain and inflammation. Strengthening the muscles around the elbow and arm stabilizes the joint, preventing further injury and improving daily activity performance. By targeting flexibility and muscle balance, therapy exercises restore range of motion and alleviate discomfort from conditions like tendonitis or repetitive strain.